date_less_than Yes Returns FALSE if the value is not a valid date OR if the date entered is after the control date. There can be up to 3 comma delimited parameters

1. Mandatory. The date to compare against. This can be one of
   • A literal date, eg 2022-02-07
   • The name of another input, eg "effective_until"
   • The literal text "today" (case insenstive)
2. Optional. If the date can be the same as the control date, make the second parameter "true". You can use "false" if you want to use the third parameter
3. Optional. Only used when the first parameter is the name of another input. This parameter will be the human name of the input. Prefix with "lang:" to use a languge directive.

date_less_than[today,true]
date_less_than[2022-09-04]
date_less_than[input_name,true,lang:input_name_lang_directive]